Hi,

Please try the following steps ( And retry starting the server after each one):

1) Change the port number in your config file (server.socketport)
2) Remove any #'s before and after the server.sockethost variable in the config file
3) Try changing the value of server.socket_host to "localhost". If that does not work, try using your server's ip address

Source: http://forum.openerp.com/forum/topic10765.html

I face the same problem with version 7.

Here is what I did and generated the problem:

I copy modules to Addons folders, but don't restart Openerp 7 service and it still keep working. But when I restart Openerp 7, the service stop immediately. I track in the system and find the same error log record.

Don't know how to fix it. (Just a simple copy & paste module to addons, but it make all my ERP stop)